And having to fuel exploration with food, I suppose. If the conversion bonus didn't have a stacking cost, then I could see some hope despite everything - maaaaybe. However, every time we decide Gaan'Telet's undoable with something it turns out the most broken thing immaginable post-perspective shift once the fabled "Random Pubstomper" turns up with having done it but not having a clue about rogues...
Plus, to paraphrase Laverne from the Day of the Tentacle: "I'm sure the dev's wouldn't have realeased him if he wasn't tested. After all they are the devs..." (Cue devs upon seing someone do it: "IT WORKS! I CAN'T BELIEVE IT!"
)